Counterbalanced pumping jack



Oct. 19,1926.

J. D. BROWN COUNTERBALANCED PUMPLNG JACK 2. 'heetseet 1 Oct 19 1926.1,603,836

- J. D. BROWN COUNTERBALANCED PUMPLNG JACK Filed March 29. 1924 2Sheets-Sheet 2 @Mg-ffm Patented Oct. 19, 19266 PATENT JOI-IN' D. BROWN,0F BRECKE'NRIDGE, TEXAS.

COUNTERBALANCED PUMPING JACK.

Application led March 29, 1924.

This invention relates to improvements in pumping apparatus.

The primary object of this invention is the provision of an improvedpumping ack for use in connection with oil pumping apparatus, embodyingan improved counterbalancing feature, and means to permit its collapsinginto an out of the way relation with respect to a pumping rod.

A further object of this invention is the provision of a pumping jackwhich includes counterbalancing means to offset the excessive weight ofthe pump line and 4to permit operation of the pump line or rod with theexpenditure of less power than is ordinarily necessary.

A further object of this invention is the provision of an improvedpumping jack which embodies a folding feature by which the jack may befolded into an out of the way relation with respect to the pumping lineor rod, so that access to the latter may readily be had either for thepurpose of drawing the pumping rod, or Working about the same.

Other objects andV advantages of this invention will be apparent duringthe course of the following detailed description.

In the accompanying drawings, forming a part of this specification, andwherein similar reference characters designate corresponding partsthroughout the several views,

Figure 1 is a side elevation showing the,

manner in which the improve-d pumping jack is used in connection withother pumping apparatus.

Figure 2 is a. plan view of the improved pumping jack and itsassociating pumping apparatus.

Figure 3 is a cross sectional. view taken substantially on the line 3 3of Figure 1.

Figure 4 is a cross sectional view taken substantially on the line 4-4of Figure 1, and

Figures 5, 6 and 7 are perspective views showing details of the improvedpumping jack.

Figure 8 is a cross sectional view taken on the line 8-8 of Figure 1.

Referring to the pumping apparatus, the

letter A may generally designate the pump rod; B the main beam pivotedat one end upon a support C; D the improved pump,-

Selial No. 702,824.

ing jack connected for operation to the main beam B by means of a pitmanE; the improved pumping ack D being operated by a power cable or rod F.

The support C on the upper end thereof is preferably provided with aribwhich is arcuate in cross section and over which the beam B restsythebeam B being provided in one end thereof with a recess 16 to receive therib 15 for fulcruming the beam B.

The pump rod A is connected in pivotal manner to the beam B, by means17.

A base 18 is provided for the pumping jack D, which upwardly thereon isprovided with a groove 19 for pivotally receivingthe pumping jack D infulcruming relation thereon.

The improved pumping jack D furthermore consists of the upright rockerconstruction 20; a fixed frame construction 21 extending to one side ofthe upright construction 20; a foldable frame construction 22 extendingto the opposite side of the upright construction 20; and thecounterbalance receptacle 24 supported by the fixed frame construction21.

The upright rocker construction 2O preferably consists of the fulcrumblock 25, which is provided with a fulcrum rib 26 extending therebelowadapted for pivotal reception in the fulcrum groove 19 of the base 18.The upright rocker construction 20 furthermore includes the side bars 27and 28 which extend upwardly from the block 25,

being connected lto the latter by suitable bolts 29 and BOwhiohrespectively connect the fixed and foldable frame constructions 21 and22 to the upright 20. The upright bars 27 and 28 are connecte-d at theirupper ends by means of a bolt construction 31 which receives details ofthe fixed and foldable frame constructions 21 and 22, as will besubsequently described.

The fixed frame construction 21 which is supported by the uprightconstruction 2O to one side of the latter, preferably consists of alaterally extending arm connected at right angles to the uprightconstruction 20, and which arm consists of a pair of bars 38 and 34 witha block 35 clamped therebetween. The bars 33 and 34 are fixedlyconnected by the bolt 29 to the upright construen tion 2O at the lowerend of the latter, and

-ally connected at the lower end of the upright construction to normallyextend at right angles to the latter. This arm construction comprises apair of bars 45 and 4G pivotally connected by thebolt to theuprightconstruction 20. At their outer ends the arms and 46 support a pitmani'ulcrun'i bloclr 48 by means ot a bolt 49; this tulcrum block 48 in theupper surface thereot having` a recess within lwhich the lower end ofthe pitman E may rest. A diagonal brace construction is provided for thefold- A able frame construction 22 which consists oi' sectional sidebars. Side bar sections 51 and 52 are pivotally connected to the bars 45-and 46 by means ci the bolt 49 above mentioned, and brace sections 53and 54are pivot-ally connected to the bolt 31 at thetop of the uprightconstruction 20. The brace sections 51 and 52 are pivotally hinged tothe sections 53 and 54 by means of a bolt 58; a spacing sleeve 59 beingprovided to separate the brace sections 51 and 53 from the bracesections 52 and 54. l/Vhen the sections 51 to 54 inclusive are extendedin aligning relation they provide a diagonal brace for supporting thebars 45 and 46 in a 'right angled relation with respect to the uprightconstruction 20, and this places the v,pumping jack in an operatingposition so thatthepit- Y man E may rest upon the ulcrum block 48.

'At the upper end of the upright construction 20, and between the bars27 and 28 ofi said upright construction a stirrup Vblock 60 may bepivotally supported by the bolt 31; p

said stirrup block having atransverse opening 61 therein for receivingthe bolt 31, and having a second opening or passageway 62 therethroughadapted to receive a bolt vfor pivotal connection of the stirrup 63 tothe block 60. The stirrup 63 is oi' course a part of the power line F.

The counterbalancing feature of this invention consists of the box orreceptacle 24 which is supported by the arm portion of the fixed iframe21 ;the receptacle 24 being bolted to the block 35 by means oi bolts-65.The receptacle is, of course, open, andinay receive therein-stone,cement, scrapY iron, r

any approved weighing material 6? which will counterbalanc'e theVweight-fof the pump rod or line. y

Referring 'to the operation 'of this invention, during pumping, thepartsare Iassem- :led as illustrated in Figure 1 of the draw ngs. Thepitman E at its lower end rests upon the i'ulcrum block 48, and at itsupper end engages in a recess in the lower side ot the main beam B at apoint adjacent the pump rod A and on the opposite side oi the pumprod Afrom the pivotal support oi' the beam B with respect to the standard C.The pumping jack D is iiulcrumed upon the base 18 as above mentioned,and the i'olding1 trame construction 22 is extended so that the pitman Emay rest upon the iiulcrum block 48. The power line F is connected bymeans ot the stirrup 63 tothe upper end oi the upright construction 2Oand suitable weighing material is disposedin the receptacle 24 fiorcounteibalancing the, weight of the pump line A. The power line or cableli" transmits the power for rocking of the pumping jack D, so that uponthe upstrolie oi the trame 22 the pump 'rod A will be elevated throughthe connection et the pumping jack with the beam B. The power line F is,Vof course, connected to the pumping jack at one end and to a centralpover station at the other, as many wells can be 'pumped 'from one suchcentral power station. Each well must have its own pumping jack andvpower line, but incidentto the simplicity or' Athe improved pumping jack'he counte'rbalancing kteature ot this invcntioi'i renders the pumpingapparatus all the more practical as many more wells may be operatedduring the pumping action with a given amount'oil power by the use ofthis improved pumping jack. A very great improvement of the improvedpumping jack D lies in the fact/that it does away with Vthe necessity otdeta'cliing bolts and other complicated parts of the pumping jack andotherapparatus in order that the pitman E may be disconnected fromtliepu'mping Jack trame portion land the latter may be swung back uponthe7 iixed frame construction 21 in the manner illustrated by tlie'dotand dash lines in Figiir'e 1 of the drawings. In this position thepumping jack is entirely out 'of the way the pumping rod or line A, sothat workmen may with facility work about the pun'iping rod, or may drawthe same without intcr ference. lWhile during operation the bolts 30,31, 49 and 58 are tightened, they may be loosened'to,peri-nit4 thepivotal folding action of the parts of the frame construction Variouschanges in the shape, size, and arrangement of partsy may be madeY tothe form of the improved pumping` jack and apparatus'herein shown anddescribed, without depart-ing from the spirit oiE this invention or'scope ofthe claims.

I claim:

1. In avdevice of the class described a pivotmemben 'a rigid 'frameextending to one side'oftlie pivot member, and a `collapsible'franieextendingA to the opposite side oi iii() the pivot member which when inextended position is rigid with said rigid frame.

2. A lpumping jack comprising an upright member, a rigid frame extendingto one side of the upright member, a pivoted arm extending to theopposite side of said upright, and collapsible means for holding the armin extended relation with respect to the upright member.

3. In a pump jack the combination of an upright construction, meansrockably supporting the upright construction, a rigid frame extending toone side of the upright construction, and a collapsible frame extendingto the opposite side of the upright construction adapted to be extendedoutwardly of the upright construction or collapsed with respect thereto.

4. A pumping jack comprising a base, an upright rockably supported onthe base, a rigid frame extending to one side of the upright, an armpivotally carried at the opposite side of the upright, and a collapsiblebrace adapted to support the pivoted arm in an extended relation withrespect to the up right.

5. In a pumping jack the combination of an upright, an arm extending toone side of said upright, a brace connected at the outerend of saidarmand to the upper end of said upright for stably holding the arm inextended relation with the upright, an arm pivotally connected to theopposite side of the upright with respect to the mounting of said firstmentioned arm with the upright, and a collapsible brace connected at theouter end of the second mentioned arm and at the upper end of theupright adapted to be collapsed to permit folding of the secondmentioned arm towards the upright.

6. A pumping jack comprising an uprightconstruction, a pivot blockcarried at the lower end of said upright construction, a

stirrup block carried at the upper end of said upright construction, arigid frame extending to one side of the upright construction, an armpivotally connected to the lower end of the upright and extending to theopposite side of the upright with respect to the rigid frame, a pitmansupport member carried by the free end of said arm, and a collapsiblesectional brace connecting the free end of said arm to the upper end ofsaid up-l right whereby the arm may be extended with respect to theupright or folded thereagainst.

7. In combination a base, an upright member, a rigid frame constructionextending to one side of the upright member, a foldable frameconstruction extending to the opposite side of said upright, and meansfor connecting a power line to the upper end of said upright.

8. A pumping jack comprising a base, a block pivotally mounted on thebase, a pair of bars connected at opposite sides of said block in afixed relation therewith, a stirrup connecting block pivotally supportedat the upper end of said bars therebetween, an arm connected at thelower end of said bars and extending to one side of the pivot axlethereof, a diagonal brace connected at the outer end of said arm and atthe upper end of said bars, an arm extending to the opposite side ofsaid bars ina pivotal connection therewith, and a diagonal braceconsisting of a plurality of pivotally connected sect-ions pivotallyconnected at the upper end of said bars and at the outer end of saidlast mentioned arm.

9. In combination a platform, a support carried by the platform, a beampivoted at an end thereof on said support, a pump rod pivotallyconnected with said beam remote from said beam pivot, a pump jackstructure pivoted intermediate its ends including a counterweight to oneside of the pivot axis thereof and an arm extending to the opposite sideof the pivot axis thereof, and a pitman connected between said arm ofthe jack and the beam pivot engaging said beam at a point thereon to theopposite side of said pump rod pivot with respect to the beam pivot onsaid support.

10. In combination a platform, an upright on the platform, a beampivoted on said upright, a pump rod pivotally connected with said beamremote from the beam pivot on said upright and intermediate the ends ofsaid beam, a second support, a pump jack structure pivoted intermediateits ends on said second support including a counterweight extending toone side of the pivot axis of said pump jack and a collapsible armextending to the opposite side of the axis of said jack whereby the armwhen extended projects toward said pump rod and when collapsed foldsaway from the pump rod toward said counterweight, and a pitman disposedbetween the collapsible arm of said jack 'and said beam engaging thelatter at the opposite side of the pump rod pivot connection therewithwith respect to the pivot action of the beam on said first mentionedsupport.

ll. In combination a base, an upright member on the base, acounterweight rigid with the upright member extending to onesidethereof, a foldable frame construction extending to the opposite side ofsaid upright, and means for connecting a power line to said upright.

i12. In combination a base, a movably mounted upright member, a frameconstruction carried by and rigidly extending to one side of the uprightmember, a foldable frame construction carried by and'extending to theopposite side of said upright, and a counterweight carried by said rigidframe construction.

13. In an article of manufacture 4a pump jack comprising an uprightpivoty member, an yarm pivotally connected with the upright pivot memberand extended laterally .there- 5 from at the lower end of said uprightmember, anda seetional diagonal brace including a plurality of pivotallyconnected .sections and at the ends thereof being pivotally conneetedtothe upper end of said upright, and the outer end of said pivoted armwhereby when the brace is extended in rigid relation the arm yWill ,beAextended from the upright in rigid right angled relation.

JOHN D. BROWN.

